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    기계적 합금화에 의한 산화물 분산강화 텅스텐 중합금의 제조방법
    61.
    发明公开
    기계적 합금화에 의한 산화물 분산강화 텅스텐 중합금의 제조방법 失效
    通过机械合金生产氧化物分散强化钨合金的方法

    公开(公告)号：KR1020020005120A

    公开(公告)日：2002-01-17

    申请号：KR1020000039100

    申请日：2000-07-08

    Applicant: 한국과학기술원

    Inventor： 홍순형 ,  류호진

    IPC: B22F3/00

    CPC classification number: C22C32/0031 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2998/10 ,  F42B12/74 ,  B22F1/0044 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10

    Abstract: PURPOSE: A method for producing oxide dispersion strengthened tungsten alloy caused by mechanical alloy is provided to improve compression strength of high temperature, and to finely disperse the oxide of the tungsten alloy. CONSTITUTION: A method for manufacturing oxide dispersion strengthened tungsten alloy comprises a first stage mixing Y2O3 powder of 0.5-5 wet% into mixed powder composed of tungsten powder of 90 wet%, nickel powder, and iron powder; a second stage producing oxide dispersion strengthened tungsten alloy by mechanical alloy; a third stage molding the powder as green compact by using a press; and a fourth stage sintering the green compact in a temperature range at 1400-1600 deg.C. The oxide dispersion strengthened tungsten alloy is produced by the mechanical alloy process. The oxide dispersion strengthened tungsten alloy improves the strength of the high temperature by inserting Y2O3 element stabilized at the high temperature. Thereby, the oxide dispersion strengthened tungsten alloy finely disperses the oxide of the tungsten alloy.

    Abstract translation: 目的：提供由机械合金引起的氧化物分散强化钨合金的制造方法，以提高高温的压缩强度，并使钨合金的氧化物微细分散。 构成：氧化物分散强化钨合金的制造方法包括：将0.5〜0.5％的Y2O3粉末与90％的湿粉末，镍粉末和铁粉末的钨粉末混合的第一阶段混合; 通过机械合金生产氧化物分散强化钨合金的第二阶段; 第三阶段通过使用压制成型为生坯的粉末; 以及在1400-1600℃的温度范围内烧结生坯的第四阶段。 氧化物分散强化钨合金是通过机械合金工艺生产的。 氧化物分散强化钨合金通过插入稳定在高温下的Y2O3元素来提高高温强度。 因此，氧化物分散强化钨合金将钨合金的氧化物细分散。

    고부피분율 탄화규소 예비성형체의 제조방법
    62.
    发明公开
    고부피분율 탄화규소 예비성형체의 제조방법 失效
    高容积碳化硅预制件的制备方法

    公开(公告)号：KR1020010094499A

    公开(公告)日：2001-11-01

    申请号：KR1020000016821

    申请日：2000-03-31

    Applicant: 한국과학기술원

    Inventor： 홍순형 ,  이효수 ,  전경윤

    IPC: C04B35/565

    CPC classification number: C04B35/565

    Abstract: PURPOSE: Provided is a preparation method of high volume fraction SiC preform(more than 70%) used as a reinforcement material in metal matrix composite by ball milling and pressing method. The preform is applied to electric packaging and space aircraft products requiring low thermal expansion and high thermal conductivity. CONSTITUTION: The method comprises the steps of: preparing a slurry by mixing at least two SiC particles with a different size within 0.2-48micrometer, an organic binder such as 0.1-5% of cationic starch, an inorganic binder such as 0.1-10% of colloidal silica, flocculant such as 0.1-5% of polyacrylamide, and water, and ball milling; filling slurry inside a mold with an absorbent in upper and lower mold and uniaxially pressing at 0.50-3.00MPa to decrease water left in slurry; drying it at room temperature for 48 hrs. and then at 100deg.C for 27hrs.; and sintering it at 800-1100deg.C for 2-6hrs.

    Abstract translation: 目的：提供通过球磨和压制方法在金属基质复合材料中用作增强材料的高体积分数SiC预制件（大于70％）的制备方法。 该预制件适用于需要低热膨胀和高导热性的电动包装和太空飞机产品。 方法：该方法包括以下步骤：通过混合至少两种尺寸不同于0.2-48微米的SiC颗粒，有机粘合剂如0.1-5％阳离子淀粉，无机粘合剂如0.1-10％ 的胶体二氧化硅，絮凝剂如聚丙烯酰胺的0.1-5％，水和球磨; 在上模和下模中用吸收剂填充浆料，并以0.50-3.00MPa单轴压制，以减少浆料中剩余的水分; 在室温下干燥48小时。 然后在100℃下搅拌27小时。 并在800-1100℃下烧结2-6小时。

    산화물 핵연료 소결체 및 이의 제조방법
    68.
    发明公开
    산화물 핵연료 소결체 및 이의 제조방법 有权
    氧化物核燃料颗粒及其制造方法

    公开(公告)号：KR1020150135679A

    公开(公告)日：2015-12-03

    申请号：KR1020140062245

    申请日：2014-05-23

    Applicant: 한국과학기술원

    Inventor： 류호진 ,  홍순형 ,  김준희

    IPC: G21C3/36

    CPC classification number: Y02E30/40 ,  G21C3/36 ,  G21C3/42

    Abstract: 본발명은산화물핵연료소결체및 이의제조방법에관한것으로, 이를위하여, 본발명은산화물핵연료의소결체로써, 상기소결체내에열전도성의 2차원또는 3차원구조체를포함하는것을특징으로하는산화물핵연료소결체을 제공한다. 본발명은핵연료소결체의열전도도를높이고, 원자로연소중 핵연료의온도를감소시킬수 있으며, 이를통해, 핵연료의안전성및 성능을증가시키고, 원자로사고에서안전성에대한여유도를향상시킬수 있다.

    Abstract translation: 氧化物核燃料颗粒及其制造方法技术领域本发明涉及氧化物核燃料颗粒及其制造方法。 为此，本发明提供了氧化物核燃料颗粒，其是氧化物核燃料的颗粒，并且包括颗粒中的导热性的2D或3D结构。 本发明提高了核燃料芯片的导热性，并且可以降低反应堆燃烧中核燃料的温度。 从而提高了核燃料的稳定性和性能。 可以提高反应堆事故的安全性。

    탄소나노소재, 탄소나노소재-고분자 복합소재, 탄소섬유-탄소나노소재-고분자 복합소재, 및 이들의 제조 방법
    69.
    发明公开
    탄소나노소재, 탄소나노소재-고분자 복합소재, 탄소섬유-탄소나노소재-고분자 복합소재, 및 이들의 제조 방법 无效
    碳纳米管，碳纳米材料聚合物复合材料，碳纤维碳纳米管聚合物复合材料及其制备方法

    公开(公告)号：KR1020150090831A

    公开(公告)日：2015-08-06

    申请号：KR1020150000630

    申请日：2015-01-05

    Applicant: 한국과학기술원

    Inventor： 홍순형 ,  진성환 ,  차재민 ,  황재원 ,  이동주

    IPC: C01B31/02 ,  B82B1/00

    CPC classification number: C01B32/15 ,  B82B1/00

    Abstract: 본원은, 탄소나노소재, 상기탄소나노소재를포함하는탄소나노소재-고분자복합소재및 탄소섬유-탄소나노소재-고분자복합소재, 및이들의제조방법에관한것으로서, 구체적으로는기계적밀링을통해, 방향족탄화수소고리및 극성기를동시에함유하는기능기화분자에의하여기능기화된탄소나노소재, 상기탄소나노소재를포함하는탄소나노소재-고분자복합소재및 탄소섬유-탄소나노소재-고분자복합소재, 및이들의제조방법에관한것이다.

    Abstract translation: 碳纳米材料，碳纳米材料，碳纤维 - 碳纳米材料 - 聚合物复合材料的碳纳米材料 - 聚合物复合材料及其制造方法技术领域本发明涉及碳纳米材料，碳纳米材料 - 聚合物复合材料及其制造方法，具体涉及由功能化分子 通过机械研磨同时包含芳族烃环和极性基团，碳纳米材料，碳纤维 - 碳纳米材料 - 聚合物复合材料的碳纳米材料 - 聚合物复合材料及其制造方法。

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